Home / 490,983.21-677,546.19-284,260.32

Finding the Fourth Proportional to 490,983.21, 677,546.19 and 284,260.32

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Solution

The fourth proportional to 490,983.21, 677,546.19 and 284,260.32 is: 392,273.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,983.21 : 677,546.19 = 284,260.32 : x
  2. Step 2: Convert to fraction form
    490,983.21/677,546.19 = 284,260.32/x
  3. Step 3: Cross multiply
    490,983.21x = 677,546.19 × 284,260.32
  4. Step 4: Simplify right side
    490,983.21x = 192,599,496,784.18
  5. Step 5: Solve for x
    x = 192,599,496,784.18/490,983.21
  6. Step 6: Final answer
    x = 392,273.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.